A technology used in server
and networkstorage. Once
data has been written to the primary storage site, new
writes to that site can be accepted, without having to wait for the secondary or
remote storage site to also finish its writes. The downside to asynchronous
replication is the possibility of data loss if the primary site should happen to
fail before the data has been written to the secondary site.
Webopedia's Did You Know... The Benefits of Tiered Storage? Over the past five years data storage requirements have grown at an exponential rate. While, the emergence of new technologies such as SAN (storage area networks), iSCSI, CAS (content addressed storage) and the enhancements to many proven technologies like NAS (network attached storage) have pushed the industry in pursuit of the holy grail -- ILM.
